// Copyright 2023 xobserve.io Team
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import G6 from '@antv/g6'
import { upperFirst } from 'lodash'
import { paletteColorNameToHex } from 'utils/colors'

export const initLegend = (donutColors) => {
  const legendData = {
    nodes: [],
  }

  Object.keys(donutColors).map((key, i) => {
    legendData.nodes.push({
      id: key,
      label: upperFirst(key),
      order: i,
      style: {
        fill: paletteColorNameToHex(donutColors[key]),
      },
    })
  })

  const legend = new G6.Legend({
    data: legendData,
    align: 'center',
    layout: 'horizontal', // vertical
    position: 'bottom-left',

    padding: [1, 10, 1, 10],
    containerStyle: {
      fill: 'rgba(255,255,255,0.2)',
      lineWidth: 0,
    },
    title: ' ',
    titleConfig: {
      offsetY: -8,
    },
  })

  return legend
}
